Strong THz fields produce pronounced changes in the THz transmission of a nano-antenna-array-patterned GaAs film. The nonlinear absorption of the nano-antenna/GaAs composite is significantly larger than that of bare GaAs due to field enhancement by the nano-antennas.
© 2013 OSA
Y. Jeong, M. Paul, S. Kim, K. Yee, D. Kim, and Y. Lee, "Large Enhancement of Nonlinear Terahertz Absorption in Intrinsic GaAs by Plasmonic Nano Antennas," in CLEO: 2013, OSA Technical Digest (online) (Optical Society of America, 2013), paper QF2D.7.
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